public static T RecursiveFindWindow <T>(IntPtr x, Func <WinComponent, T> f, Func <T, T, T> g)
where T : class
{
var list = new List <T>();
if (x == IntPtr.Zero)
{
return(null);
}
var r = x;
var stk = new Stack <T>();
var node = r;
while (true)
{
var n = f(FromHandle(node));
stk.Push(n);
var node_child = PInvoke.GetWindow(node, (uint)PInvoke.GetWindowFlags.GW_CHILD);
if (node_child != IntPtr.Zero)
{
node = node_child; // walk down
}
else
{
IntPtr node_next;
while (true)
{
if (node == r)
{
var res = stk.Pop();
return(res);
}
node_next = PInvoke.GetWindow(node, (uint)PInvoke.GetWindowFlags.GW_HWNDNEXT);
if (node_next != IntPtr.Zero)
{
break;
}
var xn = stk.Pop();
var e = stk.Pop();
e = g(e, xn);
stk.Push(e);
node = PInvoke.GetParent(node); // walk up
}
var xn0 = stk.Pop();
var e1 = stk.Pop();
e1 = g(e1, xn0);
stk.Push(e1);
node = node_next; // PInvoke.GetWindow(node, (uint)PInvoke.GetWindowFlags.GW_HWNDNEXT); // ... and right
}
}
}
public static void ScrollIntoView(IntPtr hWnd)
{
PInvoke.RECT rc, rpc;
IntPtr hwndParent = PInvoke.GetParent(hWnd);
if (hwndParent == IntPtr.Zero)
{
// no parent, cannot be scrolled
return;
}
// is the parent window vertically or horizontally scrollable?
var style = (PInvoke.WindowStyles)PInvoke.GetWindowLong(hwndParent, -16 /*GWL_STYLE*/);
var vscroll = (style & PInvoke.WindowStyles.WS_VSCROLL) != 0;
var hscroll = (style & PInvoke.WindowStyles.WS_HSCROLL) != 0;
ComputeRectRelativeToParent(hWnd, hwndParent, out rpc, out rc);
while (hscroll && rc.Left < rpc.Left)
{
Scroll(hwndParent, 0, 1); // move right
ComputeRectRelativeToParent(hWnd, hwndParent, out rpc, out rc);
}
while (vscroll && rc.Top < rpc.Top)
{
Scroll(hwndParent, 1, 0); // move up
ComputeRectRelativeToParent(hWnd, hwndParent, out rpc, out rc);
}
while (hscroll && rc.Right > rpc.Right)
{
Scroll(hwndParent, 0, -1); // move leftP
ComputeRectRelativeToParent(hWnd, hwndParent, out rpc, out rc);
}
while (vscroll && rc.Bottom > rpc.Bottom)
{
Scroll(hwndParent, -1, 0); // move down
ComputeRectRelativeToParent(hWnd, hwndParent, out rpc, out rc);
}
}